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An air carrier flight crew was distraction during descent, and failed to notice that altitude capture mode was not capturing, at assigned altitude.
| Attributes | |
| ACN | 298231 |
| Time | |
| Date | 199503 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ach |
| State Reference | NM |
| Altitude | msl bound lower : 26400 msl bound upper : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab tracon : sbn |
| Operator | common carrier : air carrier |
| Make Model Name | DC-8 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 147 flight time total : 12000 flight time type : 6000 |
| ASRS Report | 298231 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On mar/xx/95 a company flight, sdf to abq, was cleared by ATC to descend from FL310 to FL270. Autoplt did not make altitude capture at FL270. Aircraft descended to FL26.4 before corrected. Cause was lack of crew situational awareness due to crew distraction and autoplt malfunction.
Original NASA ASRS Text
Title: AN ACR FLC WAS DISTR DURING DSCNT, AND FAILED TO NOTICE THAT ALT CAPTURE MODE WAS NOT CAPTURING, AT ASSIGNED ALT.
Narrative: ON MAR/XX/95 A COMPANY FLT, SDF TO ABQ, WAS CLRED BY ATC TO DSND FROM FL310 TO FL270. AUTOPLT DID NOT MAKE ALT CAPTURE AT FL270. ACFT DSNDED TO FL26.4 BEFORE CORRECTED. CAUSE WAS LACK OF CREW SITUATIONAL AWARENESS DUE TO CREW DISTR AND AUTOPLT MALFUNCTION.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.